-Do you know Sally? -Yes. I often saw her _______ in the gym. A. swim B. swam C. swimming
Lily has ________ homework and she really doesn’t know ________ first.
--- Excuse me, sir. Smoking ________ in the hospital. ---Oh, I’m really sorry.
--- How do you like the program The Voice of China? --- ________ amazing program it is! Many people like to watch it.
Dear students, please read every sentence carefully. _______ you are, ________ mistakes you’ll make.
---________ Tom ________ Bob has passed the exam. ---Yes. Both of them did quite well.